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Patented Jn. lo, |899.

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-w. F. C. TRINKLEB. FnL'DlNG wALL TABLE. (Application mea sepc. 1e, A189s (No Model.)

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l Patented 1an- 10.1899.

W. F. C. TRINKLER.

FOLDING WALL TABLE.

(Application filed Sept. 16, 1898.) l

.2 Sheets- ShawlA (No Model.)

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VUNITED STATES PATENT OFFICE.

WILHELM FRIEDRICH CHRISTIAN TRINKLER, OF HAMBURG, GERMANY.

FOLDING WALL-TABLE.

sPEcIFrcATIoN forming part of Letters Patent No. 617,429, dated January 10, 1899. Application iiled September 16, 1898. Serial No. 691,082. (No model.)

To @ZZ whom it 'may concern,.-

Be it known that I, WILHELM FRIEDRICH CHRISTIAN TRINKLER, a citizen of the German Empire, and a resident of Hamburg, Germany, have invented certain new and useful Improvements in Folding Wall-Tables, of which the following is a specification.

This invention relates to a wall-table having a table plate or ap, hereinafter called a flap, which folds down automatically when it is slightly raised, this being effected by the action of a spring which has a tendency to withdraw the hinged support of the iiap, whereby pins carried by the said support, which have been previously disengaged by the raising of the table, are caused to slide back in guide-slots, so as to produce an automatic folding of the flap.

An improved folding wall-table in accordance with this invention is illustrated in the drawings accompanying my specification, in which- Figures l and 2 are side elevations, partly in section, respectively showing the table in its open and folded positions; and Fig. 3 is a front elevation. Fig. 4 is a plan showing the table opened out, and Fig. 5 another plan showing it folded. Fig. 6 is an end elevation of the locking mechanism, showing the stay i locked; Fig. 7, a similar view showing the stay unlocked; Fig. 8, a side elevation, partly in section, of the locking mechanism, showing the position of the parts when the stay is unlocked; Fig. 9, a similar elevation showing the position of the parts when the stay is locked; Fig. l0, a longitudinal section through the hinge 2"; and Figs. l1 and 12 are end views 0f the same, showing it in different positions.

The flap ct may be fixed either directly to the wall or to a separate wall-board b, which is suspended, by means of eyes b let into its rear side, from hooks b2, fixed in the wall, or it may be otherwise suspended or iixed. When a wall-board is used, as shown, the flap a, is connected thereto by means of a jointed bar c, which is hinged at one end to a bearing strap or bracket c on the wallboard b and at the other end to a bearing strap or bracket c2 on the iiap a. Upon the under side of the Hap ct there is xed along each of its sides a fillet cl, provided with a a constant tendency to pull the said support f toward the wall. The spiral spring h (which may be replaced by a iiat spring or other suitable spring device) hangs in eyes h', of which one eye is let into the rear side of the wall-board b, while the other eye is fixed on the front part of the support f.

On the under side of the iiap ct, near its rear edge, there is hinged a stay i, which is movably jointed to a llet Z, that is adapted to slide in a guide le in the support f.

The device which effects the automatic locki ing of the stay 'L' and which is shown in detail in Figs. 6 vto l2, comprises two legs m and m', which inclose an acute angle and which are respectively pivoted at their upper ends on pins n n. These pins are fixed in a plate o, let into the support f. Both legs m and m are under the iniiuence of a spring p, which has a constant tendency to pull them toward` each other. In the plate o there is fixed a pin q, which serves to limit the inward mc ment of the legs 'm m. This device acts such a manner that when the flap a is ope-v. Figs. l, 6, and 9, both legs bear with theirlower bent ends against the hinge t" of the stay and fillet l. In this position the fillet l, which, as before stated, can slide in the guide 7c of the support, bears at its lower end upon an angle-piece r, so that the said 'iillet cannot move either upward or downward, the ,iiap a being thereby held in an absolutely stable position. When the flap is folded down, the legs m and m of the locking device have the position shown in Figs. 7 and S-that is to say, they are situated with their lower ends at the sides of the hinge t". This position is imparted to the legs m m by loosening their hold on the hinge, owing to the folding back of the support f. The two lateral eyes of the hinge, which are secured to the lower end of the stay t' and which, in conjunction with the IOO and 12, arranged parallel to the stay fi.

central eye of the fillet Z, form the complete hinge-knuckle c", are providedv at their ends with wedge-shaped notches i2, Figs. lO, 11, The fillet lis secured by means of two cross-pieces ZZ in its guide of support f. To the latter there is attached a chain or cord provided with a knob s.

In the horizontal position of the flap d the fillet Zbears upon the angle-piece r and the legs m m of the locking mechanism bear against the full or unmutilated portion of the hinge, Figs. 6 and i). y

B y raising the flap d the action of the spring h will draw the support f up, and the stay iis consequently folded against the support. In this way the lateral notches i2 of the hinge fi are gradually brought opposite to the legs m m and permit the hinge fi' to slide upwardly between them until the hinge arrives in the position illustrated in Figs. 7 and 8. If the table is to be again opened, the fiap ais first raised to lower the stay z', and consequently the fillet Z, until the latter is supported upon angle-piece yr. A pull on the knob s will now draw the support f forward and again cause the legs m m to bear upon the unmutilated part of the hinge i'.

The manipulation or operation of the hereindescribed folding wall-table is both simple and certain. The iiap a is thrown up by a slight pull on the knob s, and by equally slight lifting of the said fiap the wall-table can be folded.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is- 1. A folding table composed of a hinged iiap, a pivoted support having a sliding connection with said flap, and a stay pivoted to the flap and having a sliding connection with the support, substantially as specied.

2. Afolding table composed of ahin ged flap having guide-slots, a pivoted support having pins adapted to engage said slots, and a stay pivoted to the ap and having a sliding connection with the support, substantially as specified.

3. Afolding table composed ofahinged flap, a pivoted support having a sliding connection with said flap, a spring which is under tension when the iiap is open, and a stay pivoted to the flap and having a sliding connection with the support, substantially as specified.

4. A folding table composed of ahinged flap, a pivoted support having a sliding connection with said flap, a stay pivoted to the flap, a fillet movable along the support, a hinge that connects the stay with the fillet, and a pair of spring-actuated legs adapted to bear upon said hinge when the flap is open, substantially as specified.

5. The combination of a hinged iiap with a support having a sliding connection with said flap, an inclined stay between the fiap and support, and means for locking said stay to said support when the flap is in its horizontal position, substantially as specified.

6. The combination of a hinged flap with a support having a sliding connection with said iiap, an inclined stay pivoted to said flap, and a pair of spring-actuated legs adapted to lock the stay to the support when the iiap is in its horizontal position, substantially as specified.

7. The combination of a hinged iap having a guide-slot with a spring-actuated support having a pin that engages said slot, and with a folding stay between Ithe flap and sup port, substantially as specified.

Signed by me, at Hamburg, this 2d day of September, 1898.

WILHELM FRIEDRICH CHRISTIAN TRIN K LER. lVitnesses:

W. T. E. KOCH, E. Il. L. MUMMENHOFF. 

